package wizard;

import install.Main;
import java.awt.BorderLayout;
import java.awt.Insets;
import java.net.URL;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
import javax.swing.border.EmptyBorder;
import javax.swing.border.EtchedBorder;

/**
 * The install/update type options panel for GetBIRCH.
 *
 * On this panel, the user can choose whether they wish to perform a default
 * or an advanced installation/update of BIRCH.
 **
 * @author Graham Alvare
 * @author Dale Hamel
 * @author Brian Fristensky
 */
public class TypePanel extends WizardPanel {

    /**
     * This radio button is used in conjunction with 'advancedButton'
     * for determining whether to perform an advanced or default
     * installation/update of BIRCH.
     *
     * If defaultButton is selected,
     *      a default BIRCH installation/update will be performed
     * If advancedButton is selected,
     *      an advanced BIRCH installation/update will be performed
     */
    private final JRadioButton defaultButton = new JRadioButton("Default install/update (from network)", true);
    /**
     * This radio button is used in conjunction with 'defaultButton'
     * for determining whether to perform an advanced or default
     * installation/update of BIRCH.
     *
     * If defaultButton is selected,
     *      a default BIRCH installation/update will be performed
     * If advancedButton is selected,
     *      an advanced BIRCH installation/update will be performed
     */
    private final JRadioButton advancedButton = new JRadioButton("Advanced install/update", false);
    /**
     * The general installation/update parameters selected, if the user
     * decides to perform a default BIRCH installation/update.  This will
     * change, if the user modifies the advanced installation/update options!
     */
    JTextArea installStatus = new JTextArea();
    /**
     * The serialization UID for the installation type panel.
     */
    private static final long serialVersionUID = 1L;

    /**
     * Create a new install/update type selection panel
     **
     * @param wizard the installation wizard object to attach the panel to
     */
    public TypePanel(BIRCHWizard wizard) {

        // copy function parameters to class variables
        ButtonGroup bgroup = null;
        JLabel iconLabel = new JLabel(new ImageIcon((URL) TypePanel.class.getResource("dna.jpg")));
        JLabel barLabel = new JLabel("-------------------------------------------------------------------------");
        JLabel typeSelectionLabel = new JLabel("Please choose default or advanced install/update type");
        JPanel contentPanel = new JPanel();

        // configure the two install type buttons
        bgroup = new ButtonGroup();
        bgroup.add(defaultButton);
        bgroup.add(advancedButton);

        // configure the bounds of the different components on the screen
        typeSelectionLabel.setBounds ( 15,  15, 476, 27 );
        defaultButton.setBounds (      17,  57, 370, 17 );
        installStatus.setBounds (      15, 75, 467, 114 );
        barLabel.setBounds (           18, 197, 465, 26 );
        advancedButton.setBounds (     16, 220, 368, 17 );

        // configure the installation/update type text area
        installStatus.setEditable(false);

        // configure the main content panel
        contentPanel.setLayout(null);
        contentPanel.setSize(512, 344);

        // add the components to the main content panel
        contentPanel.add(defaultButton, null);
        contentPanel.add(advancedButton, null);
        contentPanel.add(typeSelectionLabel, null);
        contentPanel.add(installStatus, null);
        contentPanel.add(barLabel, null);

        // further configure the main content panel
        contentPanel.setVisible(true);
        contentPanel.setBorder(new EmptyBorder(new Insets(10, 10, 10, 10)));

        // prepare the current panel for display
        setLayout(new java.awt.BorderLayout());
        iconLabel.setBorder(new EtchedBorder(EtchedBorder.RAISED));
        
        add(iconLabel, BorderLayout.WEST);
        add(contentPanel, BorderLayout.CENTER);

        if (Main.DISC_INSTALL) {
            defaultButton.setText("Default install/update (from disc)");
        }

        // set the action listeners for the default vs. advanced install/update
        defaultButton.addActionListener(wizard.changeNextToFinishAction);
        advancedButton.addActionListener(wizard.changeFinishToNextAction);
    }

    /**
     * Returns whether an advanced installation should be performed, or a
     * default installation/update.
     **
     * @return true if an advanced install/update should be performed
     */
    public boolean isAdvancedInstall() {
        return advancedButton.isSelected();
    }

    /**
     * Determines whether this step is sufficient to complete the install wizard
     * Returns whether or not to display the "Finish" button for this step of
     * the installation/update (as opposed to the "Next" button)
     **
     * @return whether to complete the install/update process
     */
    @Override
    public boolean isFinished() {
        return defaultButton.isSelected();
    }

    /**
     * This method checks for errors in the current install wizard panel
     **
     * @return true if there are no errors in the current panel
     */
    @Override
    public boolean errorCheck() {
        return true;
    }
}